Paper cutting window guards occupy an important position in the wedding.
剪纸窗花在婚礼中占有重要的地位。
The research cutting window sidetrack drilling cementing quality has important significance for improving oil development result, extending the production life of oil well and reducing the cost.
研究开窗侧钻井固井质量,对提高油气开发效果、延长油井的使用寿命、降低成本,具有重要意义。
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